i feel my tongue gets heavy and lots of water in mouth in every time,feeling bad pain in both side under jaw and have a bad headache in the right side .the pain under jawline increase due to the headache. and the area under jaw line becomes fatty.. there is another problem, my palm of hand and feet remains hot all the day. i have tiny brown and red spots on my breast,belly and hand,neck.

Hello dear
Here i think you have mixed two conditions.your jaw pain , watering in mouth and heavy tongue and even your headache are most probably is due to bad oral hygiene and you might need regular professional cleaning because if there is excess of plaque in mouth then it can lead to such kind of symptoms.And second your increased body tmperature and brown red tiny spots can be because of disturbed hormonal level ( THYROID).
So better consult with your dental hygienest and GP lateron.
Best Dr. Amit k. Gaba

I would advise you to get a checkup done by a Physicisn and Oral and Maxillofacial Surgeon.
Take an OPG x-ray of the mouth. Look for any neurological disorders, salivary gland functioning, health of teeth & gums, oral mucosa.

Meanwhile you can go for symptomatic treatment at home maintaining a good oral hygiene, use of antiseptic mouthwash solution twice daily.